Stretcher



June 17, 1930. E. WEBER-STIERLIN STRETCHER Filed Jan. so; 192a 2sheets-Spat 1 June'17, 1930. E. WEBER-STIERLIN 1,754,477

STRETCHER Filed Jan. 5o, 1928 2 sheets-sheet 2 m FVWllj;",'Lllfii'sinvention relfatestoistretchers and more particularly tostretchersof' the kkind having2 tvvo longitudinal poles cfa-ch* consistfing of twofparts ecupledtogether fof use but separatedffor transport,saidpoles i ing ajfabri'cor thelike supportand i y 2,-: being spacedhystays capable ofloemg locked orclramped in'epositif'oninsuch a mannerthat the'stretclier cani be divided vinto -tWo parts 10.for't1fansportor stor'a'g'e,` the saidpar'ts'loeing nl coupled togetlierf'vvhen thestretcher is Te,-

: qui-rai forts@ f The: main Obj-ect Off the invention -is tof providera stretcher ofthe type .y des'cribedzvvhichl be; quickly arranged for fr Y Y A15K` usef'withff aiminimum et mapulation.` 1i

.j `further` ohj ect is the 'provision 'ot auto'- maticl means tosecu-reand lockthe stays and l the poles .in theirrespective posi Moreover thelongitudinal pole parts are interconnected by folding or collapsible ystaysv attached tothe supporting legs, each stay-being provided withmeans, say alock- Y ":'30Hing-pin, `for automatically securing thelegoffone longitudinal pole part, in relation tok rvr`-`the latter in thelposition of use` When the lstays. are in the extended position. The in-@vention .Y also includes automatic -means yfor 35 locking or clampingthey stays in their *exv'tendedposition.I f

L 4ment and construction of the parts as here- AQ inafter described'andshovvn in the draWings. n In thel accompanying dravvingoneconstructional example of the invention is repre'-V l y A i sented :v KY Y Fig. 1 is a crossesection'through two longiaftudinal pole partsshowing the spacing means.

. i Fig. 2 shows the collapsed spacing means. y f Figs. 3 andll show astretcher inside ele- ;y vVation and plan respectively. These figures yf are on a smaller scale and do not shovvk the `5.0' stretcher fabric.

l -Referrling-to the drawings-thee p' ,i to which vthe stretcher''falonicr is attac Y 'each consist of two-parts" eas tions'ftolforlm s"Migd-butverv liahtstretchef-r 1 Y- v f "2,0 li attai'nthese 7and otherobjects-by arrangv inga supporting'legon each of thel four ylongitudinal pole parts so las to be capables f of'folding, the meansvfor spacing the longif' ftudinalpoles losingV attached to the supports,25 ing legs of the longitudinal poleparts.

. describedybeing provide With these and. other objects' invievv the f vinvention consists inthe particular arrange#l "Fr'is'pan'elevationalfvievv'offtle--cone l necting means-betweenthe endsof tvv'oifstay's' Figure@ iSv-'an-.elevational view'z'offanndtoff ythepoleandfthe "leg uponffwhifch-it issup-fy a portedi; Figureisaldetailvievv oia-pole-.end'5a'. i'

isafsubaan-aauy Sectional-'viewer aperti@ Y i l the end of: thestayrodgfFigure 9|*isfastantiallyf'sectional .fi'evv etaipoleandfadfila-f-Go have a :pivot pin` 8f near -thel top at, 110..; 'rhsStay; gsextenaabtyonathe 'point Y 5 The ot attachment anidhasl a!sloping 1 end; sloped Aiendi 4L engages a1 spring-mount y sor"'stirrup'catch -11,vvlien l thelstays clamped; @mocked sposata l12in11 ispivoted on stayf `91 1 (andi's' s forcel Love, a c hinnp' Qnsaety`proj action-13'; on:` the stay 9 j against thenctionspringil pos onedpkY inside the stay` (which is tubular) when thetubularstay @nei end `O915;! the" othen end; engages saidppr'oj ect the free end of ring 11 assoon as the stays 9, y

9 are brought in the position shown in Fig. 1.

Ther-ing 11 is iirst displaced against the ac- :tio'n of spring 12 andsnaps over the end 4 Y catch 13 and retains the stays`9, 9 in theirlocked position; to free the ring 11 again before folding the stretchersome pressure has to be applied to the ring 11 to' pass it over theprojection 13. Y y

In addition there is provided on the stay 9 a cap 14. rFhe cap 14, whichis formed of a piece ofsheet iron, is rigidly fastened to the stay 9 andis provided with two spaced downwardly projecting lugs between which'the end 4, ofthe stay 9 is inserted. Each of the stays 9, 9- is providedwith a bolt 16. This bolt exten-ds into a boring 17 (Fig. 7) on thefolding leg2 and also into aboring 18 provided in a downwardly extendinglug 19 on the sleeve 5. Each stay9, 9 has in addition a plate 20 whichengages the lug 19 on the sleeveY 5 when the spacing stays 9, 9 are eX-tended and by this means the poles 1, 1 are spaced apart and the fabric,T isl drawn taut.

Y The stays consequently maintain thelegs 2 and the poles 1,1 inthecorrect position. The load carried by the stretcher is taken up 'oy thestays 9, 9 through the plates 20. All the parts of the stretcher are nowin their vlocked position.

Tubular components 30, 31 (Fig. 4) are rigidly secured'to each half 1, 1of a longitudinalpole for coupling up same. Inserted in the tubularcomponent is a fitting l32 which is,1-for example, welded in, whilst invthe'tube 31,l asecond fitting 33 is inserted and weldedv in.` The end ofthe tubular member 30is'provided with alitting 32 having spaced lugsbetween which a pin 34 is supported, the latter being disposed to enterslots 37 in the lugs of the fitting 33 as illustrativ-ely exempliiied-inFigure 10. Y The fittings 32, 33 have other but the coupling is notliable to be freed unintentionally when the stretcher is in use. What. Iwish to secure by S. Letters Fatent is:' v Y 1. Foldable braces and legstructure for f the separable longitudinal pole parts of a stretcher,comprising a sleeve fixed adjacent pendicular to the sleeve and polepart, and a locking member pivotally mounted between the arms of the legand provided with a projection which projects into the registeredopenings in the bracket and leg cap to secure the leg Vin positionperpendicular to the pole part.

`the sleeve and longitudinally of the bracket along the side thereof.Vadjacent the.v pivotal connection with the leg.

3. Foldable `braceskand leg structure for the separable longitudinalpole parts `of a stretcher, as claimed in claim 1, in which the lockingmember comprises a socket to receive the end of a stay rod forming partof the stretcher kframe and'asplayed end comprising three parts, onethereof carrying the pivotal connection with the bracket, Vtheintermediate projection 'curved about the pivotal connection of theother part as a center and forming the said projection vto be insertedin the openings of the bracket and leg cap, and the third Vpartbeing ashoeprojecting perpendicular to the aXisof the socket and stay lrod andforming a stop abutting the bracket when the leg is swung to position ofuse and the c urved partis in locked vposition in said openings. V

In witness whereof I afiiX mysignature.

. ERNST WEBER-STIERLIN.

c theend of eachfpole part andprovided with 'a bracket projectingperpendicularly thereto and having an opening adjacent its outer end,

a. VU-shaped leg pivotally mounted at the end of one ofits arms at acorner within said bracket, said arms having a cap for the ends ofthevlegs providedwith an opening disposed to register with the opening inthe bracket when the leg isswung to position per- 2. Foldable bracesandvleg structure for"

